INSTEN Universal Stereo Audio Bluetooth FM Transmitter for Smartphones - Frustration-Free Packaging - Black Broadcast music from your smart phone or Micro SD card with this premium quality Bluetooth FM transmitter. Color: Black.FM Transmit Frequency: 87.5-108 : DC 12V, vehicle output: 5V, 2.1A. Frequency Response: 20 Hz-15 KHz. Effective distance:. Bluetooth version: 2.0.All-in-one FM transmitter: you can enjoy music, answer hands-free calls and charge your device at your car. Compact and user friendly design: easy access to all function. Adjustable angle design: fit different vehicles. CVC technology: cancel echo and reduce ambient noise. Automatically power-off memory. Package includes:.1 X Bluetooth FM transmitter.1 X Remote Control.1 X User Manual